<template>
    <div id="aCoursesList" class="bg-fa of"> 
        <!-- 讲师列表    开始 -->
        <section class="container">
            <header class="comm-title all-teacher-title">
                <h2 class="fl tac">
                    <span class="c-333">全部讲师</span> 
                </h2>
                <section class="c-tab-title">
                    <a id="subjectAll" title="全部" href="#">全部</a>
                        <!-- <c:forEach var="subject" items="${subjectList }">
                            <a id="${subject.subjectId}"
                            title="${subject.subjectName }" href="javascript:void(0)"
                            onclick="submitForm(${subject.subjectId})">${subject.subjectName }</a>
                        </c:forEach>-->
                </section> 
            </header>
            <section class="c-sort-box unBr">
                <div>
                    <!-- /无数据提示    开始-->
                    <section class="no-data-wrap" v-if="data.total == 0">
                        <em class="icon30 no-data-ico">&nbsp;</em>
                        <span class="c-666 fsize14 ml10 vam">没有相关数据，小编正在努力整理中...</span>
                    </section>
                    <!-- /无数据提示    结束-->
                    <article class="i-teacher-list" v-if="data.total > 0">
                        <ul class="of">
                            <li v-for="teacher in data.items" :key="teacher.id">
                                <section class="i-teach-wrap"> 
                                    <div class="i-teach-pic">
                                        <a :href="'/teacher/' + teacher.id" :title="teacher.name" target="_blank">
                                            <img :src="teacher.avatar" :alt="teacher.name"> 
                                        </a>
                                    </div>
                                    <div class="mt10 hLh30 txtOf tac">
                                        <a :href="'/teacher/' + teacher.id" :title="teacher.name" target="_blank" class="fsize18 c-666">
                                            {{teacher.name}}
                                        </a>
                                    </div>
                                    <div class="hLh30 txtOf tac">
                                        <span class="fsize14 c-999">
                                            {{teacher.intro}}
                                        </span>
                                    </div>
                                    <div class="mt15 i-q-txt">
                                        <p class="c-999 f-fA">{{teacher.career}}</p> 
                                    </div>
                                </section> 
                            </li>
                        </ul>
                        <div class="clear"></div> 
                    </article>
                </div>

                <!-- 公共分页    开始 -->
                <div>
                    <div class="paging">
                        <!-- undisable这个class是否存在，取决于数据属性hasPrevious --> 
                        <a 
                            :class="{undisable: !data.hasPrevious}" 
                            href="#" 
                            title="首页" 
                            @click.prevent="gotoPage(1)">首</a> 
                        <a 
                            :class="{undisable: !data.hasPrevious}" 
                            href="#" 
                            title="前一页" 
                            @click.prevent="gotoPage(data.current-1)">&lt;</a>
                        <a 
                            v-for="page in data.pages" 
                            :key="page" 
                            :class="{current: data.current == page, undisable: data.current == page}" 
                            :title="'第'+page+'页'" 
                            href="#" 
                            @click.prevent="gotoPage(page)">{{ page }}</a>
                        <a
                            :class="{undisable: !data.hasNext}"
                            href="#" 
                            title="后一页"
                            @click.prevent="gotoPage(data.current+1)">&gt;</a>
                        <a
                            :class="{undisable: !data.hasNext}"
                            href="#" 
                            title="末页"
                            @click.prevent="gotoPage(data.pages)">末</a>
                        <div class="clear"/>
                    </div> 
                </div>
                <!-- 公共分页    结束 -->
            </section> 
        </section>
    <!-- /讲师列表    结束 -->
    </div>
</template>

<script>
import teacherApi from '@/api/teacher'

export default {
    // 异步调用, 调用一次 asyncData({params, error}) {}
    // params: 相当于之前 this.$route.params;   this.$route.params.id 等价 params.id
    asyncData({params, error}) {
        return teacherApi.getTeacherList(1, 8).then(response => {
            return {data: response.data.data}
        })
    },
    methods: {
        // 分页切换的方法
        gotoPage(page) {
            teacherApi.getTeacherList(page, 8).then(response => {
                this.data = response.data.data
            })
        }
    }
}; 
</script>
